2D reflector and collimator structure and method of manufacturing thereof
    2.
    发明授权
    2D reflector and collimator structure and method of manufacturing thereof 有权
    2D反射器和准直器结构及其制造方法

    公开(公告)号:US08385499B2

    公开(公告)日:2013-02-26

    申请号:US12647603

    申请日:2009-12-28

    IPC分类号: H05G1/00 G21K1/02 G21K1/00

    摘要: A two dimensional collimator assembly and method of manufacturing thereof is disclosed. The collimator assembly includes a wall structure constructed to form a two dimensional array of channels to collimate x-rays. The wall structure further includes a first portion positioned proximate the object to be scanned and configured to absorb scattered x-rays and a second portion formed integrally with the first portion and extending out from the first portion away from the object to be scanned. The first portion of the wall structure has a height greater than a height of the second portion of the wall structure. The second portion of the wall structure includes a reflective material coated thereon in each of the channels forming the two dimensional array of channels.

    摘要翻译: 公开了二维准直器组件及其制造方法。 准直器组件包括构造成形成二维阵列阵列以准直X射线的壁结构。 壁结构还包括靠近待扫描物体定位的第一部分,并且被配置成吸收散射的x射线,以及第二部分与第一部分整体形成并从第一部分延伸离开被扫描物体。 壁结构的第一部分的高度大于壁结构的第二部分的高度。 壁结构的第二部分包括在每个通道中涂覆的反射材料,形成二维通道阵列。

    CT detector array having non-pixelated scintillator array
    3.
    发明授权
    CT detector array having non-pixelated scintillator array 有权
    具有非象素化闪烁体阵列的CT检测器阵列

    公开(公告)号:US07643607B2

    公开(公告)日:2010-01-05

    申请号:US11380488

    申请日:2006-04-27

    IPC分类号: H05G1/64 G01T1/202

    摘要: The present invention is a directed to a non-pixelated scintillator array for a CT detector as well as an apparatus and method of manufacturing same. The scintillator array is comprised of a number of ceramic fibers or single crystal fibers that are aligned in parallel with respect to one another. As a result, the pack has very high dose efficiency. Furthermore, each fiber is designed to direct light out to a photodiode with very low scattering loss. The fiber size (cross-sectional diameter) may be controlled such that smaller fibers may be fabricated for higher resolution applications. Moreover, because the fiber size can be controlled to be consistent throughout the scintillator array and the fibers are aligned in parallel with one another, the scintillator array, as a whole, also is uniform. Therefore, precise alignment with the photodiode array or the collimator assembly is not necessary.

    摘要翻译: 本发明涉及一种用于CT检测器的非像素化闪烁体阵列以及其制造方法。 闪烁体阵列包括相对于彼此平行对准的多个陶瓷纤维或单晶纤维。 因此,该包装具有非常高的剂量效率。 此外,每个光纤被设计成将光引导到具有非常低的散射损耗的光电二极管。 可以控制纤维尺寸(横截面直径),使得可以制造更小的纤维用于更高分辨率的应用。 此外,由于可以将整个闪烁体阵列的纤维尺寸控制为一致,并且纤维彼此平行排列,所以闪烁体阵列整体上也是均匀的。 因此,不需要与光电二极管阵列或准直器组件的精确对准。

    CT detector array having non pixelated scintillator array
    4.
    发明授权
    CT detector array having non pixelated scintillator array 有权
    具有非象素化闪烁体阵列的CT检测器阵列

    公开(公告)号:US07054408B2

    公开(公告)日:2006-05-30

    申请号:US10249694

    申请日:2003-04-30

    IPC分类号: H05G1/64 G01T1/202

    摘要: The present invention is a directed to a non-pixelated scintillator array for a CT detector as well as an apparatus and method of manufacturing same. The scintillator array is comprised of a number of ceramic fibers or single crystal fibers that are aligned in parallel with respect to one another. As a result, the pack has very high dose efficiency. Furthermore, each fiber is designed to direct light out to a photodiode with very low scattering loss. The fiber size (cross-sectional diameter) may be controlled such that smaller fibers may be fabricated for higher resolution applications. Moreover, because the fiber size can be controlled to be consistent throughout the scintillator may and the fibers are aligned in parallel with one another, the scintillator array, as a whole, also is uniform. Therefore, precise alignment with the photodiode array or the collimator assembly is not necessary.

    摘要翻译: 本发明涉及一种用于CT检测器的非像素化闪烁体阵列以及其制造方法。 闪烁体阵列包括相对于彼此平行对准的多个陶瓷纤维或单晶纤维。 因此,该包装具有非常高的剂量效率。 此外,每个光纤被设计成将光引导到具有非常低的散射损耗的光电二极管。 可以控制纤维尺寸(横截面直径),使得可以制造更小的纤维用于更高分辨率的应用。 此外,由于可以将整个闪烁器可以控制纤维尺寸一致,并且纤维彼此平行排列,所以闪烁体阵列整体上也是均匀的。 因此,不需要与光电二极管阵列或准直器组件的精确对准。

    CT detector array having non-pixelated scintillator array
    5.
    发明授权
    CT detector array having non-pixelated scintillator array 有权
    具有非象素化闪烁体阵列的CT检测器阵列

    公开(公告)号:US07224766B2

    公开(公告)日:2007-05-29

    申请号:US11029612

    申请日:2005-01-04

    摘要: The present invention is a directed to a non-pixelated scintillator array for a CT detector as well as an apparatus and method of manufacturing same. The scintillator array is comprised of a number of ceramic fibers or single crystal fibers that are aligned in parallel with respect to one another. As a result, the pack has very high dose efficiency. Furthermore, each fiber is designed to direct light out to a photodiode with very low scattering loss. The fiber size (cross-sectional diameter) may be controlled such that smaller fibers may be fabricated for higher resolution applications. Moreover, because the fiber size can be controlled to be consistent throughout the scintillator array and the fibers are aligned in parallel with one another, the scintillator array, as a whole, also is uniform. Therefore, precise alignment with the photodiode array or the collimator assembly is not necessary.

    摘要翻译: 本发明涉及一种用于CT检测器的非像素化闪烁体阵列以及其制造方法。 闪烁体阵列包括相对于彼此平行对准的多个陶瓷纤维或单晶纤维。 因此,该包装具有非常高的剂量效率。 此外,每个光纤被设计成将光引导到具有非常低的散射损耗的光电二极管。 可以控制纤维尺寸(横截面直径),使得可以制造更小的纤维用于更高分辨率的应用。 此外,由于可以将整个闪烁体阵列的纤维尺寸控制为一致,并且纤维彼此平行排列,所以闪烁体阵列整体上也是均匀的。 因此,不需要与光电二极管阵列或准直器组件的精确对准。

    Multilayer ceramic piezoelectric laminates with zinc oxide conductors
    7.
    发明授权
    Multilayer ceramic piezoelectric laminates with zinc oxide conductors 失效
    多层陶瓷压电层压板与氧化锌导体

    公开(公告)号:US06329741B1

    公开(公告)日:2001-12-11

    申请号:US09302758

    申请日:1999-04-30

    IPC分类号: H01L4108

    摘要: A modification of the traditional unimorph flextensional actuator is provided by replacing the metal shim with an electrically conducting oxide. Comprised of lead zirconate titanate and zinc oxide that is co-sintered, the laminate composite obtains large axial displacements while maintaining moderate axial loads. The varistor properties of zinc oxide dictate that the conductance increases several orders of magnitude when a critical electric field is applied. The versatility of the processing over other actuator system facilitates miniaturization, while maintaining comparable performance characteristics. Functional gradients in the material properties are created in the green body by layering thin tape cast sheets. The unique PZT-zinc oxide composite not only controls the piezoelectric gradient, but permits control of the sintering kinetics leading to the processing of either flat or highly domed structures.

    摘要翻译: 通过用导电氧化物代替金属垫片来提供传统的单压电致伸缩致动器的改进。 由锆钛酸铅和共烧结的氧化锌组成,层压复合材料在保持适度的轴向载荷的同时获得较大的轴向位移。 氧化锌的压敏电阻特性规定当施加临界电场时,电导增加数个数量级。 与其他执行器系统相比,处理的多功能性有助于小型化,同时保持可比较的性能特征。 材料性能的功能梯度通过分层薄带铸造板在生坯体中产生。 独特的PZT-氧化锌复合材料不仅控制了压电梯度,而且可以控制烧结动力学,导致平坦或高度圆顶结构的加工。